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Recently described feline dermatoses.

This article discusses the etiology, clinical signs, diagnosis, and treatment of several diseases. Feline immunodeficiency, virus infection, cryptococcosis, dermatophyte pseudomycetomas, demodicosis, Sézary-like syndrome, and discoid lupus erythematosus in cats are reviewed.

Animals↗

Exudative, crusting, and scaling dermatoses.

This article discusses the differential diagnoses for the dermatologic diseases of the cat that present with the primary owner complaint of scaling, crusting, and exudation. Clinical signs, diagnostic tests, and therapies are included for each disease.

Animals↗

Therapy for feline dermatoses.

This article compiles information on various therapies used in feline dermatology. Information on the following therapeutic agents and devices is discussed: antibiotics, antifungals, antileprosy drugs, antiparasiticides, antivirals, antihistamines, behavior modification drugs, fatty acids, progestogens, steroids, immunomodulating drugs, chemotherapeutic/immunosuppressive agents, retinoids, mechanical devices, hyposensitization, immunotherapy, food elimination trials, hypoallergenic diets, and miscellaneous topical agents such as polyhydroxydine solution, tar, and benzocaine-containing creams.

Animals↗

Factors limiting the usefulness of histopathologic examination of skin biopsies in the diagnosis of large animal dermatoses.

Skin biopsy for histologic, immunofluorescent, parasitologic, and bacteriologic examination is a common procedure, but for maximum effectiveness the clinician must realize the importance of precautions to select the correct stage of lesion of different diseases; avoiding creating artifacts during removal and fixation; and give full details of history, clinical diagnosis, and differential diagnoses on the laboratory request sheet. Pathology reports describing the subtleties of histologic changes are difficult to write, particularly if the lesions are not specific. Overly long histologic reports without a definitive diagnosis may frustrate a clinician who is unfamiliar with the significance of histologic lesions. For these reasons, clinician and pathologist must develop a rapport and empathy for the other's difficulties and adequately communicate to allow each to make a maximum contribution toward the final diagnosis. Histopathologic examination of skin lesions may not produce a specific diagnosis but is frequently useful in the elimination of other suspected diagnoses.

Animals↗

Environmental skin diseases and the impact of common dermatoses on medical readiness.

The environmental extremes in which soldiers exercise and fight, like the environmental extremes in which many civilians encounter occupationally and recreationally, can prove to be a significant cause for morbidity and decreased effectiveness. A variety of skin diseases are related to occupational exposure to dusts and ultraviolet radiation as a well known cause of cutaneous damage. As more is understood about the biochemical factors involved in frostbite injury, treatment recommendations have changed. Too much water, hot or cold, is a continued source of cutaneous misery to the soldier in the field. Finally, even common minor skin ailments can incapacitate the sufferer when confronted with unfavorable environments.

Humans↗

Parasitic dermatoses that cause pruritus in horses.

Insect hypersensitivity is the most common cause of equine pruritus. It is a seasonal, highly pruritic dermatosis that is caused by the salivary antigens of biting insects. The most common insects are discussed in terms of the area of the horse affected, clinical signs, therapy, and preventative strategies.

Animals↗

Overview of equine papular and nodular dermatoses.

Papules and nodules are common lesions on horses and have a variety of underlying causes. This article addresses inflammatory and congenital nodules primarily, including urticaria, erythema multiforme, those nodules caused by infectious agents, epidermoid and dermoid cysts, and the uniquely equine skin tumor, the sarcoid. The eosinophilic nodules and other tumors are covered elsewhere in this issue. Diagnostic and therapeutic approaches to each of the diseases are emphasized.

Animals↗

Eosinophilic nodular dermatoses.

This article describes the etiology, clinical signs, diagnosis, and treatment of various equine nodular diseases. Although of different etiologies, this group of diseases shares a common histologic reaction pattern characterized by infiltration of eosinophils and collagen degeneration. Collagenolytic granuloma, axillary nodular necrosis, unilateral papular dermatosis/eosinophilic folliculitis, amyloidosis, habronemiasis, and mast cell tumors are discussed.

Amyloidosis↗